[ARM] 4151/1: AT91 / AVR32: Move at91_pdc.h to linux/atmel_pdc.h

The Atmel AT91 and AVR32 processor architectures share many of the same
peripherals.  The PDC (Peripheral Data Controller) registers are also
implemented within in a number of the on-chip peripherals (eg, USART,
MMC, SPI, SSC, etc).

In a attempt not to duplicate the register definitions in each
peripheral, or in each architecture, the at91_pdc.h header in
asm-arm/arch-at91 and asm-avr32/arch-at32ap has been replaced with
linux/atmel_pdc.h.

The definitions have also been renamed from AT91_PDC_* to ATMEL_PDC_*,
and the drivers updated accordingly.

Original patch from Nicolas Ferre.

Signed-off-by: Andrew Victor <andrew@sanpeople.com>
Acked-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

diff --git a/drivers/mmc/at91_mci.c b/drivers/mmc/at91_mci.c
index aa152f3..521ace9 100644 (file)
--- a/drivers/mmc/at91_mci.c
+++ b/drivers/mmc/at91_mci.c
@@ -64,6 +64,7 @@
 #include <linux/err.h>
 #include <linux/dma-mapping.h>
 #include <linux/clk.h>
+#include <linux/atmel_pdc.h>
 
 #include <linux/mmc/host.h>
 #include <linux/mmc/protocol.h>
@@ -75,7 +76,6 @@
 #include <asm/arch/cpu.h>
 #include <asm/arch/gpio.h>
 #include <asm/arch/at91_mci.h>
-#include <asm/arch/at91_pdc.h>
 
 #define DRIVER_NAME "at91_mci"
 
@@ -211,13 +211,13 @@ static void at91mci_pre_dma_read(struct at91mci_host *host)
 
                /* Check to see if this needs filling */
                if (i == 0) {
-                       if (at91_mci_read(host, AT91_PDC_RCR) != 0) {
+                       if (at91_mci_read(host, ATMEL_PDC_RCR) != 0) {
                                pr_debug("Transfer active in current\n");
                                continue;
                        }
                }
                else {
-                       if (at91_mci_read(host, AT91_PDC_RNCR) != 0) {
+                       if (at91_mci_read(host, ATMEL_PDC_RNCR) != 0) {
                                pr_debug("Transfer active in next\n");
                                continue;
                        }
@@ -234,12 +234,12 @@ static void at91mci_pre_dma_read(struct at91mci_host *host)
                pr_debug("dma address = %08X, length = %d\n", sg->dma_address, sg->length);
 
                if (i == 0) {
-                       at91_mci_write(host, AT91_PDC_RPR, sg->dma_address);
-                       at91_mci_write(host, AT91_PDC_RCR, sg->length / 4);
+                       at91_mci_write(host, ATMEL_PDC_RPR, sg->dma_address);
+                       at91_mci_write(host, ATMEL_PDC_RCR, sg->length / 4);
                }
                else {
-                       at91_mci_write(host, AT91_PDC_RNPR, sg->dma_address);
-                       at91_mci_write(host, AT91_PDC_RNCR, sg->length / 4);
+                       at91_mci_write(host, ATMEL_PDC_RNPR, sg->dma_address);
+                       at91_mci_write(host, ATMEL_PDC_RNCR, sg->length / 4);
                }
        }
 
@@ -303,7 +303,7 @@ static void at91mci_post_dma_read(struct at91mci_host *host)
                at91mci_pre_dma_read(host);
        else {
                at91_mci_write(host, AT91_MCI_IER, AT91_MCI_RXBUFF);
-               at91_mci_write(host, AT91_PDC_PTCR, AT91_PDC_RXTDIS | AT91_PDC_TXTDIS);
+               at91_mci_write(host, ATMEL_PDC_PTCR, ATMEL_PDC_RXTDIS | ATMEL_PDC_TXTDIS);
        }
 
        pr_debug("post dma read done\n");
@@ -320,7 +320,7 @@ static void at91_mci_handle_transmitted(struct at91mci_host *host)
        pr_debug("Handling the transmit\n");
 
        /* Disable the transfer */
-       at91_mci_write(host, AT91_PDC_PTCR, AT91_PDC_RXTDIS | AT91_PDC_TXTDIS);
+       at91_mci_write(host, ATMEL_PDC_PTCR, ATMEL_PDC_RXTDIS | ATMEL_PDC_TXTDIS);
 
        /* Now wait for cmd ready */
        at91_mci_write(host, AT91_MCI_IDR, AT91_MCI_TXBUFE);
@@ -431,15 +431,15 @@ static unsigned int at91_mci_send_command(struct at91mci_host *host, struct mmc_
                cmd->opcode, cmdr, cmd->arg, blocks, block_length, at91_mci_read(host, AT91_MCI_MR));
 
        if (!data) {
-               at91_mci_write(host, AT91_PDC_PTCR, AT91_PDC_TXTDIS | AT91_PDC_RXTDIS);
-               at91_mci_write(host, AT91_PDC_RPR, 0);
-               at91_mci_write(host, AT91_PDC_RCR, 0);
-               at91_mci_write(host, AT91_PDC_RNPR, 0);
-               at91_mci_write(host, AT91_PDC_RNCR, 0);
-               at91_mci_write(host, AT91_PDC_TPR, 0);
-               at91_mci_write(host, AT91_PDC_TCR, 0);
-               at91_mci_write(host, AT91_PDC_TNPR, 0);
-               at91_mci_write(host, AT91_PDC_TNCR, 0);
+               at91_mci_write(host, ATMEL_PDC_PTCR, ATMEL_PDC_TXTDIS | ATMEL_PDC_RXTDIS);
+               at91_mci_write(host, ATMEL_PDC_RPR, 0);
+               at91_mci_write(host, ATMEL_PDC_RCR, 0);
+               at91_mci_write(host, ATMEL_PDC_RNPR, 0);
+               at91_mci_write(host, ATMEL_PDC_RNCR, 0);
+               at91_mci_write(host, ATMEL_PDC_TPR, 0);
+               at91_mci_write(host, ATMEL_PDC_TCR, 0);
+               at91_mci_write(host, ATMEL_PDC_TNPR, 0);
+               at91_mci_write(host, ATMEL_PDC_TNCR, 0);
 
                at91_mci_write(host, AT91_MCI_ARGR, cmd->arg);
                at91_mci_write(host, AT91_MCI_CMDR, cmdr);
@@ -452,7 +452,7 @@ static unsigned int at91_mci_send_command(struct at91mci_host *host, struct mmc_
        /*
         * Disable the PDC controller
         */
-       at91_mci_write(host, AT91_PDC_PTCR, AT91_PDC_RXTDIS | AT91_PDC_TXTDIS);
+       at91_mci_write(host, ATMEL_PDC_PTCR, ATMEL_PDC_RXTDIS | ATMEL_PDC_TXTDIS);
 
        if (cmdr & AT91_MCI_TRCMD_START) {
                data->bytes_xfered = 0;
@@ -481,8 +481,8 @@ static unsigned int at91_mci_send_command(struct at91mci_host *host, struct mmc_
 
                        pr_debug("Transmitting %d bytes\n", host->total_length);
 
-                       at91_mci_write(host, AT91_PDC_TPR, host->physical_address);
-                       at91_mci_write(host, AT91_PDC_TCR, host->total_length / 4);
+                       at91_mci_write(host, ATMEL_PDC_TPR, host->physical_address);
+                       at91_mci_write(host, ATMEL_PDC_TCR, host->total_length / 4);
                        ier = AT91_MCI_TXBUFE;
                }
        }
@@ -497,9 +497,9 @@ static unsigned int at91_mci_send_command(struct at91mci_host *host, struct mmc_
 
        if (cmdr & AT91_MCI_TRCMD_START) {
                if (cmdr & AT91_MCI_TRDIR)
-                       at91_mci_write(host, AT91_PDC_PTCR, AT91_PDC_RXTEN);
+                       at91_mci_write(host, ATMEL_PDC_PTCR, ATMEL_PDC_RXTEN);
                else
-                       at91_mci_write(host, AT91_PDC_PTCR, AT91_PDC_TXTEN);
+                       at91_mci_write(host, ATMEL_PDC_PTCR, ATMEL_PDC_TXTEN);
        }
        return ier;
 }

diff --git a/drivers/serial/atmel_serial.c b/drivers/serial/atmel_serial.c
index 881f886..0715647 100644 (file)
--- a/drivers/serial/atmel_serial.c
+++ b/drivers/serial/atmel_serial.c
@@ -33,12 +33,13 @@
 #include <linux/sysrq.h>
 #include <linux/tty_flip.h>
 #include <linux/platform_device.h>
+#include <linux/atmel_pdc.h>
 
 #include <asm/io.h>
 
 #include <asm/mach/serial_at91.h>
 #include <asm/arch/board.h>
-#include <asm/arch/at91_pdc.h>
+
 #ifdef CONFIG_ARM
 #include <asm/arch/cpu.h>
 #include <asm/arch/gpio.h>

diff --git a/include/asm-arm/arch-at91/at91_pdc.h b/include/asm-arm/arch-at91/at91_pdc.h
deleted file mode 100644 (file)
index a54adf5..0000000
--- a/include/asm-arm/arch-at91/at91_pdc.h
+++ /dev/null
@@ -1,36 +0,0 @@
-/*
- * include/asm-arm/arch-at91/at91_pdc.h
- *
- * Copyright (C) 2005 Ivan Kokshaysky
- * Copyright (C) SAN People
- *
- * Peripheral Data Controller (PDC) registers.
- * Based on AT91RM9200 datasheet revision E.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- */
-
-#ifndef AT91_PDC_H
-#define AT91_PDC_H
-
-#define AT91_PDC_RPR           0x100   /* Receive Pointer Register */
-#define AT91_PDC_RCR           0x104   /* Receive Counter Register */
-#define AT91_PDC_TPR           0x108   /* Transmit Pointer Register */
-#define AT91_PDC_TCR           0x10c   /* Transmit Counter Register */
-#define AT91_PDC_RNPR          0x110   /* Receive Next Pointer Register */
-#define AT91_PDC_RNCR          0x114   /* Receive Next Counter Register */
-#define AT91_PDC_TNPR          0x118   /* Transmit Next Pointer Register */
-#define AT91_PDC_TNCR          0x11c   /* Transmit Next Counter Register */
-
-#define AT91_PDC_PTCR          0x120   /* Transfer Control Register */
-#define                AT91_PDC_RXTEN          (1 << 0)        /* Receiver Transfer Enable */
-#define                AT91_PDC_RXTDIS         (1 << 1)        /* Receiver Transfer Disable */
-#define                AT91_PDC_TXTEN          (1 << 8)        /* Transmitter Transfer Enable */
-#define                AT91_PDC_TXTDIS         (1 << 9)        /* Transmitter Transfer Disable */
-
-#define AT91_PDC_PTSR          0x124   /* Transfer Status Register */
-
-#endif

diff --git a/include/asm-avr32/arch-at32ap/at91_pdc.h b/include/asm-avr32/arch-at32ap/at91_pdc.h
deleted file mode 100644 (file)
index a54adf5..0000000
--- a/include/asm-avr32/arch-at32ap/at91_pdc.h
+++ /dev/null
@@ -1,36 +0,0 @@
-/*
- * include/asm-arm/arch-at91/at91_pdc.h
- *
- * Copyright (C) 2005 Ivan Kokshaysky
- * Copyright (C) SAN People
- *
- * Peripheral Data Controller (PDC) registers.
- * Based on AT91RM9200 datasheet revision E.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- */
-
-#ifndef AT91_PDC_H
-#define AT91_PDC_H
-
-#define AT91_PDC_RPR           0x100   /* Receive Pointer Register */
-#define AT91_PDC_RCR           0x104   /* Receive Counter Register */
-#define AT91_PDC_TPR           0x108   /* Transmit Pointer Register */
-#define AT91_PDC_TCR           0x10c   /* Transmit Counter Register */
-#define AT91_PDC_RNPR          0x110   /* Receive Next Pointer Register */
-#define AT91_PDC_RNCR          0x114   /* Receive Next Counter Register */
-#define AT91_PDC_TNPR          0x118   /* Transmit Next Pointer Register */
-#define AT91_PDC_TNCR          0x11c   /* Transmit Next Counter Register */
-
-#define AT91_PDC_PTCR          0x120   /* Transfer Control Register */
-#define                AT91_PDC_RXTEN          (1 << 0)        /* Receiver Transfer Enable */
-#define                AT91_PDC_RXTDIS         (1 << 1)        /* Receiver Transfer Disable */
-#define                AT91_PDC_TXTEN          (1 << 8)        /* Transmitter Transfer Enable */
-#define                AT91_PDC_TXTDIS         (1 << 9)        /* Transmitter Transfer Disable */
-
-#define AT91_PDC_PTSR          0x124   /* Transfer Status Register */
-
-#endif

diff --git a/include/linux/atmel_pdc.h b/include/linux/atmel_pdc.h
new file mode 100644 (file)
index 0000000..5058a31
--- /dev/null
+++ b/include/linux/atmel_pdc.h
@@ -0,0 +1,36 @@
+/*
+ * include/linux/atmel_pdc.h
+ *
+ * Copyright (C) 2005 Ivan Kokshaysky
+ * Copyright (C) SAN People
+ *
+ * Peripheral Data Controller (PDC) registers.
+ * Based on AT91RM9200 datasheet revision E.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+#ifndef ATMEL_PDC_H
+#define ATMEL_PDC_H
+
+#define ATMEL_PDC_RPR          0x100   /* Receive Pointer Register */
+#define ATMEL_PDC_RCR          0x104   /* Receive Counter Register */
+#define ATMEL_PDC_TPR          0x108   /* Transmit Pointer Register */
+#define ATMEL_PDC_TCR          0x10c   /* Transmit Counter Register */
+#define ATMEL_PDC_RNPR         0x110   /* Receive Next Pointer Register */
+#define ATMEL_PDC_RNCR         0x114   /* Receive Next Counter Register */
+#define ATMEL_PDC_TNPR         0x118   /* Transmit Next Pointer Register */
+#define ATMEL_PDC_TNCR         0x11c   /* Transmit Next Counter Register */
+
+#define ATMEL_PDC_PTCR         0x120   /* Transfer Control Register */
+#define                ATMEL_PDC_RXTEN         (1 << 0)        /* Receiver Transfer Enable */
+#define                ATMEL_PDC_RXTDIS        (1 << 1)        /* Receiver Transfer Disable */
+#define                ATMEL_PDC_TXTEN         (1 << 8)        /* Transmitter Transfer Enable */
+#define                ATMEL_PDC_TXTDIS        (1 << 9)        /* Transmitter Transfer Disable */
+
+#define ATMEL_PDC_PTSR         0x124   /* Transfer Status Register */
+
+#endif